Hi ,
I would like guidance about following issue :

1 - How much to add to a sites cost for incorporating paypal functionality ?(amount in dollar)

2 - Is it possible to automatically sumbit CMS pages to google ?

3 - How can I incorporate category management into a php site ?
(table design and php code hints would be great, I want the ability to create categories and change the order as well , moving categories and sub categories up and down).

4 - How to build a sitemap of CMS pages.